Player Controller Blueprint Attach to Pawn Checkbox is Missing

Creating a Blueprint Player Controller asset and trying to enable Attach to Pawn does not seem to be available. The section where this setting is located shows up, but the drop down list does not appear to show up.

1. Create a new Blueprint > Player Controller
2. Open up the Blueprint and navigate to the Event Graph
3. In the Details pane look for the Controller drop down tab
4. Notice the transform section

Results: The Transform tab is there but it is impossible to drop it down to view the Attach to Pawn Checkbox.

Expected: The Transform tab to have the arrow to drop down and use the Attach to Pawn Checkbox.